Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ac6b3126c073549…

MALICIOUS

PDF

69.7 KB Created: 2021-03-22 11:38:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 41d31a89ecf8452fc7a69145343c3871 SHA-1: e9f2d3cbf6636c941ef21487b4ec53d666d15751 SHA-256: 0ac6b3126c07354970c71c59ca6bd0e10fa493cb977dd7a54461f0222ada3599
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a heuristic indicating it is part of a link farm, with a primary external URI pointing to a suspicious domain. ClamAV also detected it as a phishing trojan. While no scripts were explicitly extracted, the PDF structure and the presence of external links suggest an attempt to redirect users to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://pelibifir.ru/wix?keyword=mini+head+basketball PDF link annotation
    • https://xomugiwonin.weebly.com/uploads/1/3/4/2/134266294/7492693.pdfIn PDF document text
    • http://lovefoxesi.iblogger.org/14461106813.pdfIn PDF document text
    • https://retariluwefise.weebly.com/uploads/1/3/4/8/134858211/jejilogegasof.pdfIn PDF document text
    • https://sewatebemadog.weebly.com/uploads/1/3/1/1/131164437/jikarobu-bufozegogivobem-joxufozodudisa-mulev.pdfIn PDF document text
    • https://fogisavelubid.weebly.com/uploads/1/3/5/2/135299906/5185043.pdfIn PDF document text
    • https://gosasolana.weebly.com/uploads/1/3/4/5/134523876/894636c12f9716e.pdfIn PDF document text
    • https://mavujaxubuxabo.weebly.com/uploads/1/3/0/7/130775304/1007532.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://98e80eac-0673-4bf9-a3de-4132461903b3.filesusr.com/ugd/1acd69_7dc5900b704946fdb48418a92d8adf66.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4206d75-2b7f-49fb-97f4-1ae686a6cd22/riromedip.pdfIn PDF document text
    • http://gemosufijubimup.epizy.com/student_registration_form_in_html_codepen.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/xedulew.pdfIn PDF document text
    • https://s3.amazonaws.com/lanubili/fifiseduzarofemizixes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be8acff2-9f18-4af6-81e4-325c2266b235/a_shade_of_vampire_book_2_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/cara_memainkan_keyboard_casio_ctk_7200.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwotarotavuz/weather_report_for_cripple_creek_colorado.pdfIn PDF document text
    • https://b9ecad59-ee1c-469f-8402-ddbad3bf215f.filesusr.com/ugd/84dab8_6f6c2e6938904cab946f755cf030ca8e.pdf?index=trueIn PDF document text
    • https://b67fa923-03b4-4d21-b555-95ff628d7525.filesusr.com/ugd/1d4b90_238d49a5f1e64bc8b4597677b6f72426.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c93556d-04d1-482b-8d95-d1b977007d9c/firefly_2_vs_pax_3.pdfIn PDF document text
    • https://65f7c47b-6fa2-4aed-9649-637438a88329.filesusr.com/ugd/8fb471_55c8e2b9289e44ec832d584035377c5d.pdf?index=trueIn PDF document text
    • https://2e907eb7-0cdb-46e5-a4de-ff0e34d1b96e.filesusr.com/ugd/7ea2c5_b2b1a59e03154297b3ac50b0e02e5ae8.pdf?index=trueIn PDF document text
    • http://rudolonofuxa.epizy.com/surat_al_mulk_ayat_1_30.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c70b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC70B 4704 bytes
SHA-256: be070b3c481007a032fda6ba2e33e8cbfd63168add5b80a493440d61dd7845db
font_01_sfnt_off0000d6ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6EF 10352 bytes
SHA-256: 89add2cdccb9a801b90077f95029bb445d22e312a4188b0656de9e6fff8f3658
font_02_sfnt_off0000f9f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9F9 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

Open this report in the interactive analyzer, or submit your own file for analysis.